Parameter attributes on invoke calls were being lost due to the wrong

attribute index being used.  Fix proposed by Anton Korobeynikov, who
asked me to implement and commit it for him.  This is PR1398.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36906 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 4 deletions

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index cdaf191cf1..b70366357d 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -2787,10 +2787,12 @@ void SelectionDAGLowering::LowerCallTo(Instruction &I,
     Value *Arg = I.getOperand(i);
     SDOperand ArgNode = getValue(Arg);
     Entry.Node = ArgNode; Entry.Ty = Arg->getType();
-    Entry.isSExt   = Attrs && Attrs->paramHasAttr(i, ParamAttr::SExt);
-    Entry.isZExt   = Attrs && Attrs->paramHasAttr(i, ParamAttr::ZExt);
-    Entry.isInReg  = Attrs && Attrs->paramHasAttr(i, ParamAttr::InReg);
-    Entry.isSRet   = Attrs && Attrs->paramHasAttr(i, ParamAttr::StructRet);
+
+    unsigned attrInd = i - OpIdx + 1;
+    Entry.isSExt  = Attrs && Attrs->paramHasAttr(attrInd, ParamAttr::SExt);
+    Entry.isZExt  = Attrs && Attrs->paramHasAttr(attrInd, ParamAttr::ZExt);
+    Entry.isInReg = Attrs && Attrs->paramHasAttr(attrInd, ParamAttr::InReg);
+    Entry.isSRet  = Attrs && Attrs->paramHasAttr(attrInd, ParamAttr::StructRet);
     Args.push_back(Entry);
   }